Combined latch and lock



. (No Model.) 2 Sheets-Sheet 1..

WQH. SMITH. COMBINED LATCH AND LOCK.

No. 485.667 Patentedv Nov. 8, 1892.

(No Model.) Z'Sheets--Sheet 2. l

W. H. SMITH,

- COMBINED LATGEAND LOCK. No. 485,667. Y PatentedNov; 8, 1892.I

FIC-L4- UNITED STATES? PATENT OFFICE.

VILLIAM H. SMITH, OF BOLIVAR, MISSOURI.

COMBINED LATCH AND LOCK.

SPECIFICATION forming part of Letters Patent No. 485,667, dated November8, 1892. Application led February 20, 1892. Serial No. 422,278. (Nom'odel.)

To all whom t may concern:

Be it known that I, WILLIAM H. SMITH, a citizen of the United States,residing at Bolivar, in the county of Polk and State of Missouri, haveinvented a new and useful Oombined Latch and Lock, of which thefollowing is a specification.

This invention relates to locks; and it has for its object to provide animproved combined latch and lock adapted particularly for locking doorsand latching the same, and which will avoid' the use of springs, therebyrendering it nearly impossible for the lock to become out of order andthe various parts disengaged, as is quite usual in ordinaryspring-locks.

It is the main object of this invention to avoid these difiiculties andto provide a combined latch and lock which is greatly simplified andimproved in point of construction over ordinary locks.

With these and many other objects in view, which will readily appear asthe nature of the invention is better understood, the same consists inthe novel construction, combination, and arrangement of partshereinafter more fully described, illustrated, and claimed.

In the accompanying drawings, Figure l is a front elevationof a combinedlock and latch with the cap-plate removed, exposing the various parts intheir normal positions. Fig. 2 is a similar View showing thelocking-bolt locked in position and the latch-bolt withdrawn. Fig. 3 isa detail in perspective of the rectangular Weight-frame. Fig. 4 is asimilar view of the lock-bolt and locking-tumbler. Fig. 5 is a similarView of the latchbolt catch. Fig. 6 is a similar view of thevknob-spindle hub.

Referring to the accompanying drawings, A represents the lock-casing,which accommodates the various parts of my improved lock and latch andis provided with the usual latch and lock bolt 'openings a, in one endthereof. The said casing is provided in one of the lower corners thereofwith a rounded bearing-block B, against which the lower inner corner ofthe rectangular weight-frame C is designed to normally bear and forms apivot therefor, thus providing a pivot for said frame without the use ofpins or studs, which in time work loose and prevent the easymanipulation of the lock, while at the same time such constructionprovides for mounting the frame in the casing and entirely disconnectedtherefrom, and therefore capable of an easy removal. The saidWeight-frame C is approximately rectangular in shape and is providedwith the upper and lower weighted pieces D and D', respectively, whichare connected at their ends by the lighter end pieces E. The saidrectangular weight-frame C is provided at its extreme inner and lowercorner with the projecting bearing-stud c, which loosely bears againstthe bearing-block and allows the said frame to be moved up and down. Thelower piece D of said frame is beveled at d, so as to allow the frontend of the said frame to rest upon the bottom of the casing below thehorizontal plane. The said rectangular weight-frame is further providedat its upper inner corner with the upwardly-extending pivot-arm F,carrying the integral pivot-stud f, which pivotally engages the innerend of the bevel latch-bolt G, which is normally held without thecasing, as usual; but by the position of the gravity or Weight frame,which is normally in a tilted position', is thus held normally withoutthe casing. The said latchbolt G is provided with the locking-notches g,Which,when desired, are engaged by the pivoted latch-bolt catch H. Thesaid pivoted latch-bolt catch H is pivoted within the casing A alongsideof the latch-bolt and is provided with a thumb-grasp h, Workin g through.the opening h in the top of the casing, and

with the locking-flange h2, which by moving the catch upon its pivot isthrown into engagement with the notch g in order to lock the saidlatch-bolt in its normal position eX- tending without the casing. Thesaid weightframe C is provided at its rear inner end in one of theconnecting-pieces E with a curved recess E', which Works over theknob-spindle hub I, working in the casing at this pointv and operated bythe knob in the usual manner. The said hub I carries an offstanding armJ, which as the said hub is rotated is thrown up into the angular recessK, located in the upper weighted piece D of'said weight or gravityframe, and by continuing to turn the hub the said arln J throws theweightframe C up into a horizontal position, and thus withdraws thelatch-bolt intothe casing.

for its reception.

By releasing the hub the weight of the rectangular weight or gravityframe immediately throws the beveled latch-bolt out into its normalposition. Said arm .I is provided with a curved pointed endj toaccommodate itself to the curved angular notch K, and islimited in itsbackward movement by means of the stop-lug L, projecting from the endpiece E below the circular recess therein. The said weighted frame isprovided with the ordinary bearing projections to prevent friction andlateral displacement when the weight is in motion. V'Vorking over thefront connecting end piece E ol' said weight-frame and between theopposite extended lugs M, projecting from the casing, is the horizontallockbolt M. The said lock-bolt lll is held above the weight-frame andworks freely thereover upon the bearing-block m between said lugs andthrough the front openings a, designed The said lock-bolt M is providedwith the ordinary angular recess N, located adjacent to the ordinarykeyhole O, so as to allow the same to be moved in and out of the casing.The said lock-bolt is further provided near one end with the elongatednotch P, working over the upper one of the lugs M, and thus limiting theinward and outward movements of said bolt. Pivotally mounted at one endupon the bolt M at P is the locking-tumbler Q, which is provided with arecess q to accommodate the wing of the key, so that the same may belifted, and also with the otfstanding locking-tongue R near its otherend, and which engages on each side of the lug M, upon which the samenormally falls of its own weight when the bolt M is either in itswithdrawn or extended positions, thus serving to lock the same in bothpositions until released by the ordinary key. The lock-casing is cappedin the usual manner, and it will be noted that the rectangularweight-frame is provided with a number of notches and recesses to clearthe various parts of the lock and projections from the casing, so thatthe same may be free to swing up and down.

It is now thought that the construction, operation, and many advantagesof the hereindescribed lock are apparent without further description.

Having thus described my invention, what I claim, and desire to secureby Letters Patent, is-

1. In a lock, the combination, with the casing having a roundedbearing-block in one corner, of a horizontally-slidin g latch-bolt andan approximately rectangular gravity or weight frame comprising upperand lower weighted pieces connected at their ends by lighter end pieces,the lower piece being beveled and adapted to normally rest on the bottomof the casing and provided at its upper inner corner with a projectingpivot-arm carrying an integral pivot-stud loosely engaging one end ofsaid latch-bolt and an offstanding bearing-stud projecting from itscorresponding lower corner and looselybearing upon said roundedbearing-block in the casing, substantially as set forth.

2. In a lock, the combination, with the casing, of ahorizontally-sliding latch-bolt, a rectangular weightt`rame looselyconnected at its upper inner corner to said latchbolt and looselybearing upon the lock-casing at its corresponding lower corner,said-frame being provided with a curved angular notch or recess in theupper side of the same and an extended stop-pin or stud at a point belowand out of line with said notch, and the spindle-hub provided with anotfstanding arm having a curved pointed end registering with and workingin said notch or recesses and limited in its backward movement by saidlowerstop-pin orstud, substantially as set forth.

3. In a lock, the combination,with the casing having a top opening, of aweightcon trolled latch-bolt sliding beneath the top of the casing andprovided with a locking-notch, and a holt-catch pivoted to said casingalongside of said bolt and provided with a thumbgrasp extending throughsaid opening, and a locking-flange adapted to be thrown into engagementwith said locking-notch, substantially as set forth.

4. In a lock, the combinatiornwith the casing having a keyhole andparallel projecting guide-lugs, of a sliding bolt adapted to movebetween said lugs and provided at one end with an elongatedlimiting-notch, which receives and slides over one of said guide-lugs,and an angular k ey-receiving recess adapted to be arranged near saidkeyhole, and a locking-tumbler working between said guide-lugs, saidtumbler being pivoted at one end to said bolt and provided with anoffstanding locking tongue nearits other end, adapted to normally dropbehind the other lug in both positions of the bolt, and a recess ornotch arranged over the angular recess in the bolt and adapted toreceive the wing of a key, substantially as set forth.

In testimony that I claim the foregoing as my own I have hereto affixedmy signature in the presence of two witnesses.

NVILLIAM Il. SMITH.

Witnesses:

W. H. MASTEN, T. A. WATSON.

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